Enriching blood; Stop bleeding; Nourishing yin; Moisten dryness. Syndrome of deficiency of main blood; Fatigue and hemoptysis; Hematemesis; Urinating blood; Bloody stool; Blood dysentery; Bleeding during pregnancy; Collapse and leakage; Yin deficiency upset insomnia; Lung deficiency bath cough; Spasm, syncope and convulsion caused by wind deficiency. Efficacy of Ejiao: 1. Effect on hematopoietic system: Ejiao has a strong blood-enriching effect, and its curative effect is better than iron. 2. Anti-shock effect: It can make extremely low blood pressure return to normal level with lasting effect. 3. Effect on progressive nutritional myopathy: Young guinea pigs were fed with the feed "No.1 1" (low protein) continuously, and the feed was caused by Grignard's disease. Nutritional progressive myopathy similar to human can occur. Light people are lame and have difficulty walking; In severe cases, people are paralyzed, stunted, emaciated and weak, and even cause death. When symptoms appear, donkey-hide gelatin is mixed with basic food for treatment. After 6- 19 weeks, the symptoms of myasthenia and claudication gradually eased, and 40% disappeared. In progressive nutritional myopathy, the creatinine system in urine is generally decreased, while the creatine coefficient is increased. After Ejiao treatment, creatinine and creatine will generally gradually return to normal levels. At the same time, the content of creatine in muscle increased obviously. 4. Effect on calcium metabolism: Ni Zhangqi added 30g donkey-hide gelatin daily on the basis of basic feed, and the calcium absorption rate in food increased compared with that without adding it, so it is considered that glycine contained in it can promote calcium absorption. The blood calcium concentration of people taking Ejiao increased slightly, but there was no significant change in coagulation time. It has been reported that the calcium balance of a patient with muscle degeneration is negative, while the calcium balance of Ejiao is positive, which is also beneficial to patients with muscle degeneration. 5. Other functions: 5. 1. Effect on calcium metabolism: Ejiao can improve the calcium balance in animals. Ingesting donkey-hide gelatin into the stomach and adding calcium carbonate to food can increase the absorption and retention of calcium in the body and slightly increase blood calcium: this calcium-carrying effect may be related to glycine contained in donkey-hide gelatin. 5.2. Prevention and treatment of progressive muscular dystrophy. Feeding guinea pigs with special feed can cause progressive muscular dystrophy. Only 20% occurs when Ejiao is added, and most of them are healthy and asymptomatic. After the disease occurs, the use of Ejiao can also gradually alleviate the condition. The author thinks that vitamin E can prevent and treat the disease, and the effective reason of Ejiao may be related to its ability to prevent the oxidative damage of vitamin E in feed. This special feed contains a proper amount of vitamin E, but it also contains animal fat, which is easy to make the oxidation of vitamin E ineffective and cause this disease. 5.3. Cat experiments have proved that in the critical period of traumatic shock, injection of Ejiao refined liquid can raise blood pressure and turn the corner. Cholecystography with donkey-hide gelatin was performed in 4 cases (15-20g, taken with water), only 1 case had obvious gallbladder contraction, and the other 3 cases had no change.